add TLS record processing security offload

Add Transport Layer Security (TLS) and Datagram Transport Layer Security (DTLS). The protocols provide communications privacy for L4 protocols such as TCP & UDP.

TLS (and DTLS) protocol is composed of two layers,
1. TLS Record Protocol
2. TLS Handshake Protocol

While TLS Handshake Protocol helps in establishing security parameters by which client and server can communicate, TLS Record Protocol provides the connection security. TLS Record Protocol leverages symmetric cryptographic operations such as data encryption and authentication for providing security to the communications.

Cryptodevs that are capable of offloading TLS Record Protocol may perform other operations like IV generation, header insertion, atomic sequence number updates and anti-replay window check in addition to cryptographic transformations.

In record write operations, message content type is a per packet field which is used in constructing the TLS header. One session is expected to handle all types of content types and so, 'rte_crypto_op.aux_flags' is used for passing the same.

Support for TLS record protocol is added for TLS 1.2, TLS 1.3 and DTLS 1.2.

Changes in v2:
- Replaced CCS with CHANGE_CIPHER_SPEC (Harry)
- Split patches to clarify lifetime tracking and notification of the same in rte_crypto_op (Harry)
- Use 8 bits reserved space in rte_crypto_op to pass content type from application to PMD (in case of record write) and from PMD to application (in case of of record read). TLS 1.3 has content type as part of trailer which would be encrypted and would be removed by PMD.
- Updated documentation (Harry)

Akhil Goyal (1):
net: add headers for TLS/DTLS packets

Anoob Joseph (2):
security: add TLS record processing
security: support extra padding with TLS

Vidya Sagar Velumuri (2):
security: support TLS record lifetime notification
cryptodev: add details of datapath handling of TLS records

 doc/api/doxy-api-index.md              |   2 +
 doc/guides/prog_guide/rte_security.rst |  74 +++++++++++++
 doc/guides/rel_notes/release_23_11.rst |   6 ++
 lib/cryptodev/rte_crypto.h             |  50 ++++++++-
 lib/net/meson.build                    |   2 +
 lib/net/rte_dtls.h                     |  61 +++++++++++
 lib/net/rte_tls.h                      |  48 +++++++++
 lib/security/rte_security.c            |   4 +
 lib/security/rte_security.h            | 144 +++++++++++++++++++++++++
 9 files changed, 388 insertions(+), 3 deletions(-)
 create mode 100644 lib/net/rte_dtls.h
 create mode 100644 lib/net/rte_tls.h

2.25.1